baber/WOPTO huggingface dataset:
Patent GB-301817-A (GB)
Title: Improvements in spark-producing toys
IPC: A63H33/36
Filed: 1928-03-09
Abstract: 301,817. Arnold, C. Dec. 6, 1927, [Convention date]. Spark--producing toys.-A top of the kind comprising a rotary spark-producing mechanism f and a disc g carrying coloured transparencies, is provided above the disc g with a second disc h that is painted and provided with apertures to represent a face. The disc h is prevented from rotating by a downward projection i engaging a slot in the casing.
Patent GB-849213-A (GB)
Title: Improvements relating to electrically propelled vehicles
Inventor: CALVERLEY HENRY BOLTON
IPC: H02H11/00
Filed: 1956-03-09
Abstract: 849,213. Control of motors. ENGLISH ELECTRIC CO. Ltd. March 11, 1957 [March 9, 1956], No. 7442/56. Class 38 (3). In an electrically-propelled vehicle, a changeover switch 14 arranges the power circuit for operation at one or the other of two different supply voltages, and means responsive to the supply voltage automatically ensure that the switch assumes an appropriate position. A plurality of traction motors (either of the A.C. or D.C. types) are supplied from secondary windings 10a, 10b, and, when the switch 14 is in its high-voltage position, primary windings 10d- 10g are connected in series between circuitbreaker 13 and earth. However, when the switch 14 is in the low-voltage position, the four primary sections are connected in parallel between the circuit-breaker and earth. The position of the change-over switch is controlled by voltage-responsive relays RH, RL, the relay RL picking-up at a voltage lower than that necessary to actuate relay RH. Operation of the change-over switch to its appropriate position is followed by closure of the circuit-breaker 13, loss of supply voltage causing the circuitbreaker to be tripped. If the circuit-breaker is closed when the change-over switch is moving from one operative position to the other, the trip coil of the breaker will be energized. In another arrangement, a single primary winding is provided with a tapping and the change-over switch is arranged to connect part only of the winding in circuit for operation at low voltage and to connect the whole of the winding in circuit for high-voltage operation, Figs. 3, 4 (not shown). Alternatively, the transformer may be provided with two separate primary windings arranged respectively for the lower and higher supply voltages. The relays RH, RL, may be replaced by relays R1, R2, R3, adapted to operate at ascending values of the line voltage. If relay R1 only is actuated, it completes a circuit for the low-voltage coil 14L of the change-over switch which, in moving to its appropriate position, energizes a holding coil 13e of the circuit-breaker 13. When all three relays are operated, the high-voltage coil 14H of the change-over switch is energized, and then the circuit-breaker is closed. If, however, only the relays R1, R2 are operated, the circuit-breaker is automatically tripped and will not close again until the line-potential is restored to a proper value and the change-over switch set to a proper position.
Patent GB-352091-A (GB)
Title: Improvements in connection with electro-magnetically operated valves
IPC: F16K31/06
Filed: 1930-12-03
Abstract: 352,091. Electrically-actuated valves. MUSGRAVE, J. L. and CRITTALL & CO., Ltd., R., 43, Bloomsbury Square, London. Dec. 3, 1930, No. 7485. [Class 135.] An electromagnetically actuated valve particularly adapted for use in conjunction with a thermostat has a lift valve member D coupled by a spindle d<1> to a core a<2> working in a solenoid A. The valve may be closed mechanically and its lift regulated by a screwed spindle E operating directly under the valve head. A modification is described having a spherical valve member.
Patent GB-1383837-A (GB)
Title: Manufacture of tyres
IPC: B29D30/36
Filed: 1972-02-17
Abstract: 1383837 Building pneumatic tyres DUNLOP Ltd 17 Feb 1972 [24 Feb 1971] 7511/72 Heading B7C In a method of building a radial-ply pneumatic tyre which includes the steps of making a hollow cylindrical radial-ply carcass 2, positioning a pair of bead cores 3 adjacent the ends of the carcass 2, shaping the region 8 of the carcass 2 between the bead cores 3 to toroidal form whilst moving the bead cores toward one another, and turning up the carcass ply ends about the bead cores 3, the radially outward expansion of the carcass occurring on shaping to toroidal form is limited so that the carcass has a smaller diameter than its final diameter in the finished state resulting in the production of axially outwardly projecting bulges in the radially outer regions of the carcass sidewalls, and the carcass ply ends are turned up and secured to the carcass sidewalls whilst the latter are bulged, thereby reducing the distance over which the carcass ply ends are moved to contact the sidewalls and hence the likelihood of distortions of the tyre components in the bead and adjacent sidewall regions. Apparatus which may be used to perform the method consists of a building drum 1 having an inflatable diaphragm 5 for shaping the carcass to toroidal form, inflatable ply turn-up bags 6, and axially movable bead core supporting members 21; bead core positioning devices 4; and an annular band 7 for producing the above mentioned diameter limitation. The band 7 may be formed of at least two parts which can be coupled together, and may be provided with members for retaining and/or centering it in the apparatus. The diaphragm 5 is supported on segments 17, 18 which are radially movable by inflatable bags 19 20 respectively, the segments 18 being axially movable towards one another and being connected to end portions B, C of the drum. The end portions B, C carry the bags 6, which are mounted on surfaces 11 tiltable by inflatable bags 23, 24, and also carry the members 21 which are radially movable by inflatable bags 22. The tyre may be built in a single stage on the apparatus shown, in which case the band 7 is removed after securement of the carcass ply ends to the sidewalls and a breaker and tread are then fitted (Fig. 5, not shown). Alternatively the tyre may be built by a two-stage method in which the carcass is transferred to another apparatus after ply end securement for application of a breaker and tread, the band 7 being used to transfer the carcass.
Patent GB-590638-A (GB)
Title: Improved apparatus for the heat treatment of animal material, especially from whale,herring, or other fishes for the production of oil and dry stuff
IPC: C11B1/16
Filed: 1941-06-13
Abstract: <PICT:0590638/III/1> <PICT:0590638/III/2> Oil is extracted from animal material, especially whale, herring or other fish, by heating the material with live steam in a rotating perforated drum whose inside wall has corrugations which are parallel to the axis of the drum and which have a depth at least equal to 1/12 of the outer diameter of the drum.  The live steam enters through a stationary or rotary perforated steam supply tube arranged inside the drum along the wall thereof but at some distance therefrom, so that a plane through the longitudinal axis of the tube and the axis of the drum lies at an angle of about 45 degrees to the horizontal.  Upon rotation of the drum, the animal material is lifted to a certain height by means of the corrugations and then falls down upon the steam supply tube. Obliquely arranged plates or wings may be attached to the surface of the steam supply tube so that upon rotation of the tube a screw-thread action is created, thus producing a longitudinal movement of the animal material through the drum.  The steam supply tube may be circular, star-shaped or fan-shaped in cross-section, may be arranged for continuous or intermittent rotation, and may be provided with an arrangement, preferably driven from the driving device of the drum, for applying a vibratory or shaking movement to the tube in order to prevent an accumulation of material thereon. More than one steam supply tube may be employed and perforated steam supply tubes may also be disposed outside the drum.  The animal material may be cut up or minced before treatment and the drum may be arranged in a plate casing with oblique bottom planes for easy removal of the oil and water which separate from the animal material. One or more drums may be arranged in the casing, either one beside another or one above another or both.  The drums may work in parallel or in series.  In Fig. 4, a perforated rotating drum 1 is supplied with animal material through channel 8, the material after extraction of oil leaving through outlet 9.  The drum is arranged in a casing 7 and any oil or water which separates is led away through outlet 10. Steam is supplied from inlet 17 both through internal pipe 3, having guide wings 4, and external pipe 2.  The drum may have the cross-section shown in Fig. 1.
Patent GB-222399-A (GB)
Title: Improvements in weighing scales
IPC: G01G1/00
Filed: 1924-03-25
Abstract: 222,399. Marks, E. C. R., (Toledo Scale Co.). March 25, 1924. Balances, links for; pendulum-weight apparatus.-In a weighing scale the check arm extending from the pan support is connected to the framework by a link having conical pivots at each end. As shown in Fig. 1, the pan support 12 has a bent arm 14 provided at its upper end with a cone pivot engaging one end of a U-shaped link 17. The other end of the link provides a bearing for a cone pivot carried by an arm 20 pivoted upon the frame. The arm 20 may be adjusted and secured by means of two screws 21, 22, thus facilitating assemblage and the accurate adjustment of the parallelogram formed by the link 17 and the pan and beam bearings 11, 4. The bent arm 14 is loaded by a weight 23 in order to maintain the link 17 in tension irrespective of the position of the commodity upon the scale pan. The adjacent ends of the bent arm 14 and the arm 20 are sufficiently near to one another to prevent dislodgment of the cone pivots from their bearings if a heavy weight is placed on the righthand side of the goods pan. In a modification, Fig. 3, the link 17<a> is arranged below the pan and is maintained in compression by a weighted arm 23<a>. Dislodgement of the cone pivots 15a, 19<a> is prevented by a stop screw 25a.
Patent GB-554066-A (GB)
Title: Improvements in or relating to tool holders
IPC: B23B29/30
Filed: 1942-06-04
Abstract: 554,066. Tool holders. JEFFREY, R. A., and KENT, W. H. June 4, 1942, No. 7608. [Class 83 (iii)] A turret tool holder for a lathe comprises a shank 11 carrying a plate 10 formed with a boss 12 having ratchet teeth 13 coacting with a pawl 21 carried by a tool holding block 16 which may rotate about a central stud 15. The block has an annular flange 19 surrounding the boss 12 and a ring 29 screws over the plate 10 and abuts against the block 16 to clamp the same and to exclude dirt. The tools are secured in grooves in the tool block by screws 26 and the ratchet is arranged to oppose the thrust of the tool.
Patent GB-1213982-A (GB)
Title: Improvements in or relating to toys
Inventor: NEUFELD CHARLES WALTER
IPC: A63H7/04
Filed: 1967-02-17
Abstract: 1,213,982. Walking aid toy. NEWFELD Ltd. 24 Jan., 1968 [17 Feb., 1967], No. 7677/67. Headings A6M and A6S.  A toy comprises a body with two end portions having an internal skeletal structure each of which includes bearing means on which it may be propelled, said end portions being hingedly connected in tandem such that one portion can be aligned with or inclined to the other, the body is covered, at least at the junction point, with resilient flexible material which may be natural or synthetic rubber or synthetic resins or mixtures thereof. In a preferred embodiment a "walking aid" toy in the shape of a dog is provided at each end with at least one rotationally mounted wheel. The two skeletal structures are preferably joined in a pivotal manner and such pivot may be located adjacent to either end. A handle extending outwardly from head or tail, a seat and extra skeletal structure for reinforcement may also be included. The skeleton is made of mild steel, copper, aluminium or alloys of these, rigid synthetic resins or natural woods.
Patent GB-821885-A (GB)
Title: Container cleaning machine
Inventor: WHELAN JAMES PATRICK
IPC: B08B9/30
Filed: 1957-03-08
Abstract: 821,885. Container washing machines. PNEUMATIC SCALE CORPORATION Ltd. March 8, 1957, No. 7756/57. Class 138(1). [Also in Group XXX] A container washing machine comprises an endless conveyer having a pair of endless resilient members spaced so as to grip the mouths of containers 12 and carry them past cleaning means. The resilient members are inflated tubes 26, 28 running round drums 22, 24 which also carry a central belt 10. The containers are introduced to the machine by a belt 40 feeding them to a transfer disc 42 and then on to belt 10 and are gripped by the tubes 26, 28 at 25, carried round the drum, cleaned by air blasts from nozzles 60, 61 and delivered by a transfer disc 96 to the conveyer 94. The tubes 26, 28 are guided by rollers so that they are deflected outwardly and downwardly as shown at the feeding and emptying stations. The tubes are supported on their bottom run by rollers 78 which also support the conveyer 10 on their upper surfaces. Other rollers at suitable places keep the tubes in their correctly spaced relationship. These rollers are divided transversely into three separately rotating portions to reduce friction with the tubes. A modified nozzle construction employs a flexibly mounted tube 156 which springs into the mouth of the containers as the latter reaches the appropriate position.
Patent GB-962785-A (GB)
Title: Improvements in or relating to containers and blanks for forming them
IPC: B65D81/127
Filed: 1963-02-26
Abstract: 962,785. Moulding boxes. CROWN MACHINE & TOOL CO. Feb. 26, 1963 [Feb. 26, 1962], No. 7771/63. Heading B5A. [Also in Division B8] The walls, bottom and top of a container blank are made out of synthetic plastic usually in the form of raw beads impregnated with a suitable foaming or blowing agent such as methylchloride, butane or heptane. The blank is formed with the hinges moulded integral with it, a lower die 36 having a suitable mesh 40 placed within it and an upper die 42 having a number of inserts 44 positioned over the lower die. The two dies are brought together forming a number of cavity sections, one for each section of the container, and the beads are introduced into the cavity and heated. As the beads foam they take the form of the cavities and adhere to and intertwine with the mesh 40. By forming the walls in this way the inside of the walls can be moulded to fit the size and shape of the articles to be packaged.
Patent GB-623988-A (GB)
Title: Improvements in and relating to electric motor control
IPC: H02P7/06
Filed: 1945-03-28
Abstract: 623,988. Automatic control systems. BRITISH THOMSON-HOUSTON CO., Ltd., GRAHAM, D. H., and HOSSLE, A. March 28, 1945, No. 7845. [Class 38 (iv)] Voltage.-A speed controller for an electric motor comprises a carbon pile having a control coil in parallel with the motor shunt field coil and both coils in series with a variable resistance. As shown, a carbon pile regulator A, B maintains constant voltage across control coil B (1, 2) and field coil F (1, 2) and with variable resistance R at zero the motor armature (3, 2) will receive the same voltage and the motor will run at the minimum speed. As R is increased the carbon pile A will absorb less volts in maintaining constant voltage across 1, 2, thus increasing the voltage across 3, 2 and therefore the motor speed. A bucking series field winding S may be included so that motor speed is substantially independent of motor load. In a modification, arcing between the sheets of the pile due to rapid changing from top to low speed is prevented by shunting a relatively high resistance across it.
Patent GB-349676-A (GB)
Title: An improved weft cutting device for looms having automatic weft replenishing mechanism
IPC: D03D49/70
Filed: 1930-03-11
Abstract: 349,676. Weft ends cutting &c. in automatic looms. CAMPS, J. P., 80, Colomer Street, Sabadell, Spain. March 11, 1930, No. 7858. [Class 142 (iii).] In looms having automatic well-replenishing mechanism, a cutting member 23, movable with a rocking weft carrier or bobbin conveyer 17 is made to advance during the beat-up towards a cutter 24 mounted on the sley, the co-operation of the cutters being arranged to effect the cutting of the weft before the spent bobbin is removed from the shuttle. The cutter 23 is mounted on a spindle 5 carried by the conveyer 17 and is normally held in inoperative position by means of a spring 27. When weft replenishment is required however, a spindle 30 is rocked and, by means of links 26, 25, its movement causes the cutter 23 to be swung into cutting position. Specification 349,676 is referred to.
Patent GB-1031184-A (GB)
Title: An improved fuel injection system for gas turbine engines
IPC: F23R3/28
Filed: 1964-02-26
Abstract: 1,031,184. Liquid fuel atomizers. A. H. LEFEBVRE. Feb. 18, 1965 [Feb. 26, 1964; April 18, 1964], Nos. 7918/64 and 16169/64. Heading F4T. At low fuel flows fuel is injected into the combustion chamber of a gas turbine engine by a pilot pressure spray atomizer 10 and at high fuel flows fuel is also injected into the combustion chamber by a main airblast atomizer 12, 13. The pilot and main atomizers are supplied with fuel by concentric pipes 14, 4 and valves open at a predetermined pressure to supply the main atomizer. The pilot atomizer comprises a distributer chamber 23a from which the fuel passes through drillings 23b to an annular chamber 21a having swirl ports 25 leading to a recess 24 and a swirl chamber 26. The main atomizer comprises a series of orifices 13 coaxial with the pilot atomizer and discharging fuel on to a circular disc 12 disposed in a duct 7 through which air from a compressor passes into the combustion chamber. Swirl vanes 9 are disposed downstream of the disc 12. The air flow over the periphery of the disc 12 may be varied by a spoiler upstream of the disc. The spoiler may be a number of radial blades or spokes, or a ring, or a ring of adjustable vanes. The edge of the disc 12 may be castellated. In another embodiment, Fig. 1 (not shown), the pilot atomizer and the main atomizer are not coaxially mounted. In still another embodiment, Figs. 5, 6 (not shown), the main atomizer comprises a series of discharge orifices arranged on an annular duct 41 and directing fuel on to an annular airblast plate 42, and the pilot atomizer comprises a series of nozzles mounted on a trapezium section ring 40, the flanks of which have slots 39.
Patent GB-119011-A (GB)
Title: Improvements relating to Loose Leaf Books or Binders.
IPC: B42F13/02
Filed: 1918-05-11
Abstract: 119,011. Myatt, J. W., and Ledgers, Ltd. May 11, 1918. Cord files; clamping- devices. - A loose-leaf binder of the kind described in Specification 12709/15, wherein an elastic cord passes through notches in the rear edges of the leaves and around the covers, has a composite cord consisting of an inextensible portion a and a fine spiral spring d.
Patent GB-900460-A (GB)
Title: Process for the production of calcium carbide
Inventor: SEM MATHIAS OVROM
IPC: C01B32/942
Filed: 1959-03-06
Abstract: In the production of CaC2 by smelting lime or limestone, and a carbonaceous reducing agent, in an electric furnace at least part of the furnace charge is the reducing agent in lump form coated with one or more of the calcium compounds CaO, Ca(OH)2, or CaCO3.  Coke may be coated in a drum mixer with the Ca(OH)2 waste from the reaction of CaC2 with H2O, and the coating is preferably hardened by subjection to CO2 gas, lime, or limestone, may be used for coating with a binding agent or a mixture of Ca(OH)2 and limestone may be used.  The coated coke should be preheated, preferably to 800 DEG -900 DEG  C. to calcine any limestone.  30-60% of the calcium content of the charge should be supplied as coating on coke, and the remainder as separate fresh lime or limestone.
Patent GB-810636-A (GB)
Title: Improvements in or relating to apparatus for testing the profiles of involute gear teeth
Inventor: MUELLER KARL
IPC: G01B5/20
Filed: 1957-03-11
Abstract: 810,636. Gauging gear-teeth. MULLER, K. March 11, 1957, No. 7982/57. Addition to 746,586. Class 106 (2). The apparatus described in the parent Specification is modified by making the curved rolling surface of adjustable radius. To this end the rolling surface comprises a flexible strip 46 touching the ends of a series of parallel fingers 13 which can be moved in a frame 11, 12 to cause the strip 46 to assume an arcuate contour of the same radius as the base circle of the gear to be tested. In the embodiment of Figs. 3, 4 each finger 13 is engaged by a screw bolt 14 rotatably mounted in a bar 15 of the frame 11 whereby the fingers 13 can be longitudinally adjusted, while the frame can be adjusted to centre the contour with the gear by screws 17 engaged in brackets 16 fixed to the plate 2 (not shown). The strip 46 is a laminated assembly of two outer strips 20, 21 between which are loosely disposed a series of thinner strips 19. The strip 46 is connected to the frame 11 by two tensioning devices 47 each comprising a member 22 attached to the strip 21 and a member 23 attached to the strip 20. In each device 47 a screw 25 engages the member 22 and a member 24, which is carried on an arm 26 pivoted at 48 to the frame and also attached thereto by an adjustable strut 27, while each member 23 has a part 23b formed as a screw bolt passing through a part of the adjacent member 22 and engaged by a nut 23a. After adjusting the fingers 13, the strip 46 is drawn against their curved ends by tensioning the strip 21 through screws 25, 28 and strip 20 through nut 23a, lateral movement of the strips 19 being prevented by stops formed on the members 22. An alternative method of holding the strip 46 on the adjustable fingers is described in which the strip 46 is not tensioned but is secured by the fingers themselves suitably modified.